"hot rock" meaning in English

{
  "forms": [
    {
      "form": "hot rocks",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "hot rock (plural hot rocks)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Aviation",
          "orig": "en:Aviation",
          "parents": [
            "Aeronautics",
            "Transport",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1949, Flying Magazine, volume 45, number 4, page 28:",
          "text": "It is the privilege of every pilot to think of himself, privately at least, as a hot rock of the first magnitude. Whether he is or not is an evaluation that he is not altogether qualified to make for himself.",
          "type": "quote"
        },
        {
          "ref": "2011, Dick Jonas, A Fighter Pilot Looks At the World Upside Down:",
          "text": "If a hot rock racing plane pilot seems so calm, cool, collected, and nonchalant, it's because he's formed a habit pattern of making his flying routine. That's exactly how you want dangerous flying — or dangerous anything — to be. Routine.",
          "type": "quote"
        }
      ],
      "glosses": [
        "A daredevil pilot of great skill."
      ],
      "id": "en-hot_rock-en-noun-LRRSB~RH",
      "links": [
        [
          "aviation",
          "aviation"
        ],
        [
          "daredevil",
          "daredevil"
        ],
        [
          "pilot",
          "pilot"
        ],
        [
          "skill",
          "skill"
        ]
      ],
      "raw_glosses": [
        "(aviation, slang) A daredevil pilot of great skill."
      ],
      "tags": [
        "slang"
      ],
      "topics": [
        "aeronautics",
        "aerospace",
        "aviation",
        "business",
        "engineering",
        "natural-sciences",
        "physical-sciences"
      ]
    }
  ],
  "word": "hot rock"
}

{
  "forms": [
    {
      "form": "hot rocks",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "hot rock (plural hot rocks)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English slang",
        "English terms with quotations",
        "Pages with 1 entry",
        "Pages with entries",
        "Quotation templates to be cleaned",
        "en:Aviation"
      ],
      "examples": [
        {
          "ref": "1949, Flying Magazine, volume 45, number 4, page 28:",
          "text": "It is the privilege of every pilot to think of himself, privately at least, as a hot rock of the first magnitude. Whether he is or not is an evaluation that he is not altogether qualified to make for himself.",
          "type": "quote"
        },
        {
          "ref": "2011, Dick Jonas, A Fighter Pilot Looks At the World Upside Down:",
          "text": "If a hot rock racing plane pilot seems so calm, cool, collected, and nonchalant, it's because he's formed a habit pattern of making his flying routine. That's exactly how you want dangerous flying — or dangerous anything — to be. Routine.",
          "type": "quote"
        }
      ],
      "glosses": [
        "A daredevil pilot of great skill."
      ],
      "links": [
        [
          "aviation",
          "aviation"
        ],
        [
          "daredevil",
          "daredevil"
        ],
        [
          "pilot",
          "pilot"
        ],
        [
          "skill",
          "skill"
        ]
      ],
      "raw_glosses": [
        "(aviation, slang) A daredevil pilot of great skill."
      ],
      "tags": [
        "slang"
      ],
      "topics": [
        "aeronautics",
        "aerospace",
        "aviation",
        "business",
        "engineering",
        "natural-sciences",
        "physical-sciences"
      ]
    }
  ],
  "word": "hot rock"
}